XML 134 R45.htm IDEA: XBRL DOCUMENT v3.20.1
Organization and Principal Activities - Schedule of Significant Operating Subsidiaries (Details)
12 Months Ended
Dec. 31, 2019
Zai Lab (Hong Kong) Limited  
Subsidiary Of Limited Liability Company Or Limited Partnership [Line Items]  
Place of incorporation Hong Kong
Date of incorporation Apr. 29, 2013
Percentage of ownership 100.00%
Principal activities Operating company for business development and R&D activities and commercialisation of innovative medicines and device
Zai Lab (Shanghai) Co., Ltd  
Subsidiary Of Limited Liability Company Or Limited Partnership [Line Items]  
Place of incorporation The People's Republic of China ("PRC" or "China")
Date of incorporation Jan. 06, 2014
Percentage of ownership 100.00%
Principal activities Development and commercialisation of innovative medicines and devices
Zai Lab (AUST) Pty., Ltd  
Subsidiary Of Limited Liability Company Or Limited Partnership [Line Items]  
Place of incorporation Australia
Date of incorporation Dec. 10, 2014
Percentage of ownership 100.00%
Principal activities Clinical trial activities
Zai Lab (Suzhou) Co., Ltd  
Subsidiary Of Limited Liability Company Or Limited Partnership [Line Items]  
Place of incorporation PRC
Date of incorporation Nov. 30, 2015
Percentage of ownership 100.00%
Principal activities Development and commercialisation of innovative medicines
Zai Biopharmaceutical (Suzhou) Co., Ltd  
Subsidiary Of Limited Liability Company Or Limited Partnership [Line Items]  
Place of incorporation PRC
Date of incorporation Jun. 15, 2017
Percentage of ownership 100.00%
Principal activities Development and commercialisation of innovative medicines
Zai Lab (US) LLC  
Subsidiary Of Limited Liability Company Or Limited Partnership [Line Items]  
Place of incorporation U.S.
Date of incorporation Apr. 21, 2017
Percentage of ownership 100.00%
Principal activities Operating company for business development and R&D activities
Zai Lab International Trading (Shanghai) Co., Ltd  
Subsidiary Of Limited Liability Company Or Limited Partnership [Line Items]  
Place of incorporation PRC
Date of incorporation Nov. 06, 2019
Percentage of ownership 100.00%
Principal activities Commercialisation of innovative medicines and devices